Home / 8,115.82-11,200.35-4,577.74

Finding the Fourth Proportional to 8,115.82, 11,200.35 and 4,577.74

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Solution

The fourth proportional to 8,115.82, 11,200.35 and 4,577.74 is: 6,317.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.82 : 11,200.35 = 4,577.74 : x
  2. Step 2: Convert to fraction form
    8,115.82/11,200.35 = 4,577.74/x
  3. Step 3: Cross multiply
    8,115.82x = 11,200.35 × 4,577.74
  4. Step 4: Simplify right side
    8,115.82x = 51,272,290.21
  5. Step 5: Solve for x
    x = 51,272,290.21/8,115.82
  6. Step 6: Final answer
    x = 6,317.57

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Half scale
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Double scale
Find fourth proportional to 8,116.82, 11,201.73 and 4,578.74
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.